Its yer basic contract law; the advertisement is an invitation for you to pay over a consideration for the item and by accepting your offer a contract is formed between you and the seller which should be honoured.
The seller however is under no obligation to accept your offer so until moolah actually changes hands e.g. credit card is debited on a mail order, then there is no contract and no obligation.
Equally, even if an item is properly priced and you offer to pay that price the shop is under no obligation to accept your offer. You have no right to buy anything in a shop, you are just given the opportunity to make an offer for it which may or may not be accepted hence haggling etc.
Its yer basic contract law; the advertisement is an invitation for you to pay over a consideration for the item and by accepting your offer a contract is formed between you and the seller which should be honoured.
The seller however is under no obligation to accept your offer so until moolah actually changes hands e.g. credit card is debited on a mail order, then there is no contract and no obligation.
Equally, even if an item is properly priced and you offer to pay that price the shop is under no obligation to accept your offer. You have no right to buy anything in a shop, you are just given the opportunity to make an offer for it which may or may not be accepted hence haggling etc.